Dish Soap. You've probably seen commercials on TV about how Dawn brand dish soap is safe yet strong enough to help clean off baby ducklings affected by oil spills. As such, you're probably not too surprised to hear that dish soap is a great remedy for oil stains on your asphalt, too.
Choose a highly concentrated, oil busting dish soap, such as Dawn. Squirt it over the stain and spread it around to cover the entire affected area. Let it sit for about an hour, then mop up the dish soap and oil with a paper towel.
Use a mild grease-cutting detergent such as Dawn or Ajax dishwashing liquid mixed with water and a natural or synthetic bristle scrub brush to help brighten the patio surface. NOTE: Never use a wire brush as it can leave rust stains and scratch the concrete surface.
You can buy a commercial detergent at the local hardware store but we found a few household items will also do the trick. Washing Soda: Add ½ cup of washing soda to 4 litres of hot water. No washing soda? Just sprinkle powdered dishwashing detergent over the entire driveway.
Alkaline cleaners like baking soda (pH 8 to 9) and castile soap (pH 8.9) break down oil, grease, and other hydrocarbon-based grime. Higher alkaline cleaners like borax (pH 10) and washing soda (pH 11 to 12) tackle deeper, harder-to-remove concrete stains.
Opt for the Most Basic Route: Soap and Water
Cleaning a concrete driveway does not have to be fancy. The easiest is the trusty soap and water mixture. Use dish soap and add it to a large bucket full of water. Then, get your stiff scrub brush, making sure it is not made of metal.
Vinegar and Baking Soda
Simply fill a spray bottle with equal parts water and vinegar (or water and baking soda), and add a little bit of liquid dish detergent. Spray the mixture on your concrete surface and let it sit for about 30 minutes. Then scrub and rinse your concrete.
But did you know that the power of Dawn® can also be used as a pretreatment for laundry stains, including oil, ink, grass, and practically anything else in between? You can trust Dawn® to clean your greasiest, dirtiest dishes—which is the same reason it works so well to pretreat dirty or grease-stained clothes.
Use Dish Soap and Water
Ordinary household dish soap as a degreaser is extremely useful for cleaning up oily, grimy concrete stains while avoiding the use of harmful chemicals. Start with two gallons of warm water and a mere two teaspoons of dish soap in a standard bucket.
Mix equal parts water and vinegar and apply it to concrete. If this stain removal technique doesn't work, use 100% vinegar and scrub stains out. This solution can work on many surfaces, including car seats and hardwood floors.
Bleach, Soap, and Water Mixture
Mix one cup of bleach with one cup of powdered laundry detergent, then add 15 cups of hot water. Pour your mixture over your driveway's dirty areas, such as the parts that contain oil stains. Work your mixture in using a bristle brush and scrub for approximately 20 minutes.
Use a Detergent
Concrete detergent is incredibly effective. I tried pressure washing without it, and the result didn't come close. It helps remove stubborn oil, paint and dirt stains. I used Zep Driveway & Concrete Pressure Wash detergent, but many great options are available.
Can You Use Dish Soap to Wash Your Car? Never use dish soap to wash your car. According to Consumer Reports, dish soap isn't formulated for use on a car's paint. Even a detergent like Dawn is an abrasive cleaner and can strip away a vehicle's protective top coat.
1. Best Overall Concrete Cleaner—ZEP Purple Pressure Wash. Zep concrete cleaner has several great products, and the ZEP Purple Pressure Wash outdoor cleaner is no exception. This alkaline cleaner is low foaming and easy to rinse from the concrete surface.
The majority of my solutions contain blue Dawn® Ultra because it's concentrated. The regular Dawn is a non-concentrated version, (also called Simply Clean) so more diluted. Platinum Dawn is almost identical to Ultra, but it contains more surfactants.
Expert cleaners at Classic Cleaners confirm that original blue dawn can be used for many things, not just the dishes, because of it's grease dissolving properties. It's also non-toxic, not harmful to your skin, it's biodegradable and it contains no phosphates.
Considering the above analysis of some of the key ingredients of Dawn dish soap, we would have to conclude that no, Dawn is not an environmentally friendly product. It contains one or more ingredients that are potential groundwater contaminants. They can pollute the water system and can harm fish or marine life.
Interior Concrete Floors:
Clean with water. Use a mild detergent as needed. Such as Dove or Ivory dish soap. Do Not use Dawn, Simple Green, Ammonia or harsh cleaners as they will work to damage and even strip the wax.
Will Vinegar Damage Concrete? Cleaning concrete with vinegar will not damage it! However, saturating concrete for an extended period will damage the cement that binds concrete together. Over time, vinegar erodes the concrete itself, so be careful.
In a large bucket, combine ½ cup of liquid dish soap with 3 gallons of hot water. Slowly pour the solution onto the stain and use a stiff brush to work the liquid into the driveway. Let it sit for 10 to 15 minutes, and then rinse the area with a garden hose.
Dish soap is a go-to cleaning product when it comes to removing oil and grease, be it on dishes or on your asphalt. To use, simply pour a generous amount over the stains, add a little bit of water, and scrub the pavement with a hard bristle brush. Then, rinse it using a garden hose to remove the suds.
Stubborn stains may require extra action. Try mixing one cup of trisodium phosphate (TSP) in a gallon of hot water and pouring this over the stain. Let it soak for at least 30 minutes and scrub with a brush. Wash off with your hose and repeat as necessary.